Mr. Smith is taking out a $400,000 mortgage from a bank that offers a 25-year loan at 5% of 5 year term a. Calculate Mr. Smith's monthly payments. (3 marks) At the end of the 5th year, Mr. Smith gets a much better job as a CFO. So he re-negotiates with the bank and signs a new mortgage, under which he will pay off the remaining balance in 10 years. Calculate Mr. Smith's new monthly payments, if the interest rate stays at 5%. (5 marks) c. It turns out that Mr. Smith loses his job after 5 years in the position as a CFO. How long would it take him to pay off the mortgage, if he could only pay $800 every month